Which company owns MAC address prefix 94:DF:58?

MAC address prefix 94:DF:58 is registered to IJ Electron CO.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 94:DF:58 has a network interface built by IJ Electron CO.,Ltd..

What is the OUI 94:DF:58?

94:DF:58 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to IJ Electron CO.,Ltd.. It covers every address from 94:DF:58:00:00:00 to 94:DF:58:FF:FF:FF, or 16,777,216 addresses in total. It is also written 94-DF-58.

How do I find the manufacturer of a MAC address?

Take the first three octets of the address — in 94:DF:58:00:00:00 that is 94:DF:58 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.

Where is IJ Electron CO.,Ltd. located?

IJ Electron CO.,Ltd. is listed at 401 ACE HIGHEND8, 345-4 GASAN-DONG SEOUL KR 153-802 in the IEEE OUI registry entry for 94:DF:58. This is the address the organization registered with the IEEE, which may differ from its current operating address.

IJ Electron CO.,Ltd.

MAC address prefix 94:DF:58 is registered to IJ Electron CO.,Ltd. in the IEEE OUI registry. Any device whose MAC address begins with 94:DF:58 has a network interface built by IJ Electron CO.,Ltd.. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address — it covers every MAC from 94:DF:58:00:00:00 to 94:DF:58:FF:FF:FF.

OUI prefix: 94:DF:58
Hyphen form: 94-DF-58
MAC range: 94:DF:58:00:00:00 – 94:DF:58:FF:FF:FF
Addresses in block: 16,777,216
Organization: IJ Electron CO.,Ltd.
Address: 401 ACE HIGHEND8, 345-4 GASAN-DONG SEOUL KR 153-802
Source: IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.

Assignment history (2)

The IEEE registry publishes current state only — this is the change record we've kept since we started tracking it daily.

2016-07-29Assigned to "IJ Electron CO.,Ltd."
archived source →
2026-07-17Assigned to "IJ Electron CO.,Ltd."

Nearby in the registry

The prefixes assigned immediately before and after 94:DF:58:

FAQ

Which company owns MAC address prefix 94:DF:58?: MAC address prefix 94:DF:58 is registered to IJ Electron CO.,Ltd. in the IEEE Organizationally Unique Identifier (OUI) registry. Any device whose MAC address begins with 94:DF:58 has a network interface built by IJ Electron CO.,Ltd..
What is the OUI 94:DF:58?: 94:DF:58 is an Organizationally Unique Identifier — the first three octets (24 bits) of a MAC address, assigned by the IEEE to IJ Electron CO.,Ltd.. It covers every address from 94:DF:58:00:00:00 to 94:DF:58:FF:FF:FF, or 16,777,216 addresses in total. It is also written 94-DF-58.
How do I find the manufacturer of a MAC address?: Take the first three octets of the address — in 94:DF:58:00:00:00 that is 94:DF:58 — and look that prefix up in the IEEE OUI registry. If the second-lowest bit of the first octet is set, the address is locally administered (a randomized or private MAC), which belongs to no manufacturer and will not resolve; modern phones and laptops use these by default on each network.
Where is IJ Electron CO.,Ltd. located?: IJ Electron CO.,Ltd. is listed at 401 ACE HIGHEND8, 345-4 GASAN-DONG SEOUL KR 153-802 in the IEEE OUI registry entry for 94:DF:58. This is the address the organization registered with the IEEE, which may differ from its current operating address.